EP3079195B1 - Secondary battery - Google Patents

Secondary battery Download PDF

Info

Publication number
EP3079195B1
EP3079195B1 EP15841013.4A EP15841013A EP3079195B1 EP 3079195 B1 EP3079195 B1 EP 3079195B1 EP 15841013 A EP15841013 A EP 15841013A EP 3079195 B1 EP3079195 B1 EP 3079195B1
Authority
EP
European Patent Office
Prior art keywords
electrode assembly
electrolyte
rechargeable battery
absorbing member
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15841013.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3079195A4 (en
EP3079195A1 (en
Inventor
Jin Uk Do
Ju Bin Kim
Sang Sok Jung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Chem Ltd
Original Assignee
LG Chem Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Chem Ltd filed Critical LG Chem Ltd
Publication of EP3079195A1 publication Critical patent/EP3079195A1/en
Publication of EP3079195A4 publication Critical patent/EP3079195A4/en
Application granted granted Critical
Publication of EP3079195B1 publication Critical patent/EP3079195B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0431—Cells with wound or folded electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/392—Arrangements for facilitating escape of gases with means for neutralising or absorbing electrolyte; with means for preventing leakage of electrolyte through vent holes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/20—Pressure-sensitive devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to a rechargeable battery, and more particularly, to a rechargeable battery that is capable of absorbing stress applied to the inside of an electrode assembly when the electrode assembly is expanded.
  • rechargeable batteries are being used as energy sources of electronic equipment.
  • rechargeable batteries are being used as power sources of electric vehicles (EVs), hybrid electric vehicles (HEVs), and the like.
  • a positive electrode, a separator, and a negative electrode are wound in a jelly-roll shape to manufacture an electrode assembly.
  • the jelly-roll-type (winding type) electrode assembly is accommodated in a cylindrical or prismatic type case, and an electrolyte is injected into the case. Then, a top cap on which an electrode terminal is formed is coupled to an opened end of the case to assemble the rechargeable battery. Also, charging and aging are performed on the assembled cylindrical or prismatic type rechargeable battery to activate the electrode assembly that is in a discharged state.
  • US 2006/073380 A1 describes a secondary battery with a wound electrode assembly having a deformation prevention core as a stress-absorbing member.
  • the deformation prevention core is in some cases fixed to a separator by a tape.
  • US 2011/117414 A1 describes a secondary battery consisting of a case that contains an electrode assembly, an electrolyte, and a core member capable of absorbing the electrolyte that acts to prevent deformation of the electrode assembly.
  • US 2013/280570 A1 describes an electrode assembly that includes integrated on its surface a tape that swells in the longitudinal direction when coming in contact with the electrolyte. The tape has a substrate layer and an adhesive layer.
  • KR 2009/0088761 A describes a secondary battery including a sealing tape adhered to the exterior surface of the electrode assembly. The tape expands in a thickness direction upon impregnation of electrolyte.
  • the electrode assembly When the rechargeable battery according to the related art is charged and discharged, the electrode assembly may be expanded to generate stress to the inside and outside of the electrode assembly.
  • the stress applied to the outside of the electrode assembly may be expanded while pushing a can.
  • the stress applied to the inside of the electrode assembly may cause twist of the electrode assembly due to no space. As a result, the rechargeable battery may be deteriorated in performance by the twisted electrode assembly.
  • an object of the present invention is to provide a rechargeable battery that absorbs stress applied to the inside of an electrode assembly when the electrode assembly is expanded to prevent the electrode assembly from being twisted, thereby preventing the rechargeable battery from being deteriorated in performance.
  • a rechargeable battery including: an electrode assembly; an electrolyte immersing the electrode assembly therein; a case assembly accommodating the electrode assembly and the electrolyte; and an absorbing member disposed in the electrode assembly to absorb stress applied to the inside of the electrode assembly when the electrode assembly is expanded.
  • the absorbing member is formed of a material that absorbs the electrolyte and is swelled.
  • the absorbing member is a swelling tape that includes a base layer that is deformed in the longitudinal direction when contacting the electrolyte; and an adhesion layer disposed on one surface of the base layer by which the swelling tape is attached to the electrode assembly, and the swelling tape absorbs the stress applied to the inside of the electrode assembly.
  • the absorbing member is disposed in a winding center of the electrode assembly that is manufactured by winding a first electrode, a separator, and a second electrode in a jelly-roll shape.
  • the electrode assembly may have a cross-section having an oval shape to define a central space having an oval shape in the winding center, and the absorbing member may be attached to the central space.
  • the absorbing member may have a size that is less than or equal to that of the central space.
  • the rechargeable battery may further include a sealing tape disposed on an outer circumferential surface of the electrode assembly.
  • the sealing tape may be formed of a material that absorbs the electrolyte and is swelled.
  • the case assembly may be provided as a prismatic type can assembly.
  • the swelling tape includes a base layer deformed in a longitudinal direction when contacting the electrolyte and an adhesion layer disposed on one surface of the base layer.
  • the base layer may include at least one of a urethane-bonded compound, an ester-bonded compound, an ether-bonded compound, a cellulose ester compound.
  • the present invention has effects as follows.
  • a rechargeable battery includes an electrode assembly 110, an electrolyte 120 in which the electrode assembly 110 is immersed, a case assembly 130 that accommodates the electrode assembly 110 and the electrolyte 120, and an absorbing member 140 provided in the electrode assembly 110.
  • the absorbing member 140 absorbs stress applied to the inside of the electrode assembly 110 when the electrode assembly 110 is expanded to prevent the electrode assembly 110 from being twisted or deformed.
  • the electrode assembly 110 is manufactured by winding a first electrode 111, a separator 112, and a second electrode 113 in a jelly-roll shape.
  • the electrode assembly 110 is wound so that a cross-section thereof has an oval shape.
  • a central space 110a has an oval shape is defined in a winding center of the electrode assembly 110, and the absorbing member 140 is provided in the central space 110a (see FIG. 4 ).
  • the first electrode 111 may be a negative electrode
  • the second electrode 113 may be a positive electrode, and vice versa.
  • the electrolyte 120 immerses the electrode assembly 110 therein.
  • the electrolyte 120 together with the electrode assembly 110 may be accommodated in the case assembly 130.
  • the case assembly 130 accommodates the electrode assembly 110 and the electrolyte 120.
  • the case assembly 130 may be provided as a prismatic type can assembly for accommodating the electrode assembly 110 having the oval shape.
  • the case assembly 130 includes a prismatic type can 131 that accommodates the electrode assembly 110 and the electrolyte 120 and a can assembly 132 coupled to an opened upper portion of the can 131 to seal an opening of the can 131.
  • the electrode assembly 110 and the electrolyte 120 are accommodated in the case assembly 130. Then, the electrode assembly 110 may be charged and discharged and then be activated. Here, when the electrode assembly 110 is charged or discharged, stress may be applied to the inside and outside of the electrode assembly 110 while the electrode assembly 110 is expanded in volume.
  • the stress applied to the outside of the electrode assembly 110 is expandable while pushing the can 131, the stress applied to the inside of the electrode assembly 110 may generate twist of the electrode assembly 110 due to no space. As a result, the rechargeable battery may be deteriorated in performance.
  • the rechargeable battery according to the present invention includes the absorbing member 140 in the electrode assembly 110.
  • the absorbing member 140 absorbs the stress applied to the inside of the electrode assembly 110 when the electrode assembly 110 is expanded to prevent the electrode assembly 110 from being twisted and also prevent the rechargeable battery from being deteriorated in performance.
  • the absorbing member 140 is formed of a material that absorbs the electrolyte 120 and thus is swelled.
  • the absorbing member 140 is a swelling tape.
  • the swelling tape absorbs the electrolyte 120 to absorb the stress applied to the inside of the electrode assembly 110 while being swelled.
  • the swelling tape may be called a swellable tape, i.e., a tape that has a felt shape and is swelled when contacting moisture to prevent the moisture from being permeated.
  • the absorbing member 140 that is the swelling tape includes a base layer 141 that is deformable in a longitudinal direction when contacting the electrolyte 120 and an adhesion layer 142 disposed on one surface of the base layer 141.
  • the absorbing member 140 may absorb the electrolyte 120 through the base layer 141 and be swelled and also be attached to a planar portion in the central space 110a of the electrode assembly 110 through the adhesion layer 142.
  • the base layer 141 may include at least one of a urethane-bonded compound, an ester-bonded compound, an ether-bonded compound, a cellulose ester compound to improve swelling performance of the base layer 141.
  • the electrode assembly 110 may sufficiently secure the central space 110a so that the absorbing member 140 is stably swelled to prevent the electrodes or the separator from being damaged by the swelled absorbing member 140.
  • a portion of the electrolyte 120 accommodated in the case assembly 130 may be absorbed into the absorbing member 140 to cause a variation in capacity of the electrolyte 120.
  • the electrolyte 120 may be supplemented after the variation in capacity of the electrolyte 120 is confirmed.
  • the absorbing member 140 that is provided as the swelling tape may have a size less than that of the central space 110a. That is, since the absorbing member 140 that is provided as the swelling tape increases in length and width while absorbing the electrolyte 120, the absorbing member 140 may have a size less than that of the central space 110a in consideration of the increase in size of the absorbing member 140.
  • the absorbing member 140 that is provided as the swelling tape may have the same size as the central space 110a. That is, when the electrode assembly 110 has a small size, the absorbing member 140 that is provided as the swelling tap may also be manufactured with a small size. Thus, since the absorbing member 140 does not increase in swelling, the absorbing member 140 may have the same size as the central space 110a.
  • the absorbing member 140 that is provided as the swelling tape absorbs the electrolyte 120 and then be swelled, the absorbing member 140 may be convenient for use. Also, the absorbing member 140 stably absorbs the stress applied to the inside of the electrode assembly 110 to prevent the electrode assembly 110 from being twisted.
  • the rechargeable battery according to the present invention may include a sealing tape 150 disposed on an outer circumferential surface of the electrode assembly 110. That is, the sealing tape 150 may be provided in a shape that surrounds the outer circumferential surface of the electrode assembly 110 to fix an outer appearance of the electrode assembly 110.
  • the sealing tape 150 may be formed of a material that absorbs the stress applied to the outside of the electrode assembly 110 to prevent the case assembly 130 from being pushed out, i.e., deformed by the electrode assembly 110 when the electrode assembly 110 is expanded.
  • the sealing tape 150 may be formed a material that absorbs the electrolyte 120 and thus is swelled. That is, the sealing tape 150 may be a swelling tape that has the same as the absorbing member 140.
  • the sealing tape 150 together with the electrode assembly 110 may be accommodated in the case assembly 130, like the absorbing member 140.
  • the sealing tape 150 may be swelled while absorbing the electrolyte 120.
  • the sealing tape 150 may absorb the stress applied to the outside of the electrode assembly 110 to prevent the rechargeable battery from being deteriorated in performance and prevent the case assembly 130 from being deformed in outer appearance.
  • a first electrode 111, a separator 112, and a second electrode 113 are stacked and then wound in a jelly-roll shape to manufacture an electrode assembly 110.
  • a predetermined central space 110a is formed in a winding center of the electrode assembly 110.
  • an absorbing member 140 that is a swelling tape is attached on one surface of the central space 110a of the electrode assembly 110.
  • the absorbing member 140 has a size that is equal to or less than that of the central space 110a.
  • a sealing tape 150 formed of a swellable material is attached to an outer surface of the electrode assembly 110.
  • the electrode assembly 110 to which the absorbing member 140 and the sealing tape 150 are attached, together with an electrolyte 120 may be accommodated into a case assembly 130 to complete the manufacturing of the rechargeable battery.
  • the absorbing member 140 and the sealing tape 150 may be swelled while absorbing the electrolyte 120.
  • the completed rechargeable battery may be changed and discharged for activation as illustrated in FIG. 8 .
  • stress may be applied to the inside and outside of the electrode assembly 110 while the electrode assembly 110 is expanded.
  • the stress applied to the outside of the electrode assembly 110 may be absorbed by the sealing tape 150, and the stress applied to the inside of the electrode assembly 110 may be absorbed by the absorbing member 140 to prevent the electrode assembly 110 from being twisted, thereby preventing the rechargeable battery from being deteriorated in performance.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Cell Separators (AREA)
EP15841013.4A 2015-02-13 2015-11-04 Secondary battery Active EP3079195B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150022593A KR101851429B1 (ko) 2015-02-13 2015-02-13 이차전지
PCT/KR2015/011774 WO2016129777A1 (ko) 2015-02-13 2015-11-04 이차전지

Publications (3)

Publication Number Publication Date
EP3079195A1 EP3079195A1 (en) 2016-10-12
EP3079195A4 EP3079195A4 (en) 2016-12-21
EP3079195B1 true EP3079195B1 (en) 2019-02-20

Family

ID=56615338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15841013.4A Active EP3079195B1 (en) 2015-02-13 2015-11-04 Secondary battery

Country Status (6)

Country Link
US (1) US10693195B2 (ko)
EP (1) EP3079195B1 (ko)
JP (1) JP6326507B2 (ko)
KR (1) KR101851429B1 (ko)
CN (1) CN106165148B (ko)
WO (1) WO2016129777A1 (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102484705B1 (ko) * 2017-09-19 2023-01-03 삼성에스디아이 주식회사 이차전지
EP3731321A4 (en) * 2017-12-18 2021-07-28 Samsung SDI Co., Ltd. FINISHING TAPE AND RECHARGEABLE BATTERY INCLUDING IT
WO2021206381A1 (ko) * 2020-04-06 2021-10-14 주식회사 엘지에너지솔루션 이차전지용 스웰링 테이프 및 이를 포함하는 원통형 이차전지
KR20220015707A (ko) * 2020-07-31 2022-02-08 주식회사 엘지에너지솔루션 버튼형 이차전지
WO2023211011A1 (ko) * 2022-04-29 2023-11-02 주식회사 엘지에너지솔루션 흡열체를 내장하는 각형 이차전지
CN118044036A (zh) * 2022-07-13 2024-05-14 宁德时代新能源科技股份有限公司 支撑件、电池单体、电池、用电装置及装配方法
WO2024071934A1 (ko) * 2022-09-26 2024-04-04 주식회사 엘지에너지솔루션 젤리-롤형 전극조립체, 젤리-롤형 전극조립체 제조방법 및 이를 포함하는 이차전지

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3263182B2 (ja) * 1993-05-20 2002-03-04 松下電器産業株式会社 非水電解質二次電池およびその製造法
KR19990031053U (ko) 1997-12-30 1999-07-26 손욱 각형 리튬이온 이차전지
JP4063455B2 (ja) * 1999-09-20 2008-03-19 三洋電機株式会社 リチウムイオン二次電池
KR100614390B1 (ko) * 2004-09-06 2006-08-21 삼성에스디아이 주식회사 권취형 전극 조립체와 이를 구비하는 리튬 이온 이차 전지및 이의 제조 방법
JPWO2007097172A1 (ja) 2006-02-21 2009-07-09 パナソニック株式会社 角形扁平二次電池の製造方法
KR100859637B1 (ko) 2007-06-01 2008-09-23 삼성에스디아이 주식회사 리튬 이차전지
JP5133030B2 (ja) 2007-08-07 2013-01-30 ポリプラスチックス株式会社 樹脂の２成分混合薬液による飽和膨潤量の予測方法
KR101163387B1 (ko) * 2008-02-16 2012-07-12 주식회사 엘지화학 젤리-롤형 전극조립체를 포함하는 이차전지
KR20100092700A (ko) 2009-02-13 2010-08-23 주식회사 엘지화학 신규한 재료의 센터 핀을 포함하고 있는 원통형 이차전지
CN101601974B (zh) 2009-07-08 2011-05-11 南京工业大学 一种两亲性分子对半结晶性聚烯烃多孔膜表面的亲水改性方法
KR101192083B1 (ko) * 2009-11-18 2012-10-17 삼성에스디아이 주식회사 이차 전지
JP5409338B2 (ja) * 2009-12-25 2014-02-05 日立ビークルエナジー株式会社 捲回式角形電池
WO2012046911A1 (ko) 2010-10-04 2012-04-12 주식회사 엘지화학 실 테이프 및 이를 이용한 이차 전지
WO2012102587A2 (ko) * 2011-01-27 2012-08-02 (주)Lg화학 간극 충진용 스웰링 테이프
JP2012185925A (ja) * 2011-03-03 2012-09-27 Toyota Motor Corp リチウムイオン二次電池
KR101239622B1 (ko) 2011-03-31 2013-03-07 주식회사 엘지화학 안전성이 향상된 원통형 이차전지
CN102219904A (zh) 2011-06-07 2011-10-19 四川宝利丰科技有限公司 一种聚苯硫醚树脂纯化的方法
CN102489268B (zh) 2011-12-20 2014-04-02 南京大学 一种胺修饰的纤维状应急吸附材料及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US20160359201A1 (en) 2016-12-08
JP2017510043A (ja) 2017-04-06
CN106165148B (zh) 2019-11-08
KR20160100081A (ko) 2016-08-23
JP6326507B2 (ja) 2018-05-16
WO2016129777A1 (ko) 2016-08-18
EP3079195A4 (en) 2016-12-21
KR101851429B1 (ko) 2018-04-23
US10693195B2 (en) 2020-06-23
CN106165148A (zh) 2016-11-23
EP3079195A1 (en) 2016-10-12

Similar Documents

Publication Publication Date Title
EP3079195B1 (en) Secondary battery
US11024869B2 (en) Button cells and method of producing same
EP3477729B1 (en) Rechargeable lithium ion button cell battery
KR100614390B1 (ko) 권취형 전극 조립체와 이를 구비하는 리튬 이온 이차 전지및 이의 제조 방법
US8999559B2 (en) Secondary battery
KR101446150B1 (ko) 파우치형 이차 전지 및 이를 제조하는 방법
JP6398155B2 (ja) 二次電池
EP2445048B1 (en) Rechargeable battery
KR102637933B1 (ko) 이차전지 및 이의 제조방법
EP3067958B1 (en) Electrode assembly and secondary battery having the electrode assembly
US20120028091A1 (en) Secondary battery
KR101073313B1 (ko) 이차전지
KR20170101648A (ko) 이차전지
KR100670482B1 (ko) 젤리롤 전극 조립체와 이를 채용하는 이차전지
KR101285977B1 (ko) 전극 조립체 및 이를 구비한 이차전지
KR20160032589A (ko) 커브드 이차 전지
KR102103899B1 (ko) 이차전지 및 그 이차전지의 제조 방법
KR101615712B1 (ko) 이차전지용 전극 조립체 및 이를 구비한 이차전지
US20240047795A1 (en) Battery cover plate assembly, battery and manufacturing method of battery cover plate assembly
KR20160011983A (ko) 내식성이 향상된 원통형 전지 및 그의 제조방법
KR102028741B1 (ko) 원통형 이차전지 및 그의 제조방법
KR102445805B1 (ko) 에너지 저장 장치
CN209947880U (zh) 一种锂离子电池
EP4084196A1 (en) Button-type secondary battery
EP4123800A1 (en) Secondary battery

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20160322

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

A4 Supplementary search report drawn up and despatched

Effective date: 20161123

RIC1 Information provided on ipc code assigned before grant

Ipc: H01M 10/04 20060101AFI20161117BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20170921

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602015025112

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: H01M0010040000

Ipc: H01M0002020000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: H01M 10/04 20060101ALI20181009BHEP

Ipc: H01M 10/42 20060101ALI20181009BHEP

Ipc: H01M 2/02 20060101AFI20181009BHEP

INTG Intention to grant announced

Effective date: 20181105

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: LG CHEM, LTD.

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602015025112

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1099338

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190620

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190520

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190520

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190620

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190521

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1099338

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602015025112

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

26N No opposition filed

Effective date: 20191121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191104

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20191130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191104

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602015025112

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: H01M0002020000

Ipc: H01M0050100000

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20151104

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230408

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602015025112

Country of ref document: DE

Owner name: LG ENERGY SOLUTION, LTD., KR

Free format text: FORMER OWNER: LG CHEM. LTD., SEOUL, KR

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20230824 AND 20230831

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231023

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20231024

Year of fee payment: 9

Ref country code: DE

Payment date: 20231023

Year of fee payment: 9